diff --git a/ChangeLog b/ChangeLog
index f9888c4..0404a52 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,7 @@
 bzr branch lp:libisofs/for-libisoburn (to become libisofs-1.4.6.tar.gz)
 ===============================================================================
 * Bug fix: SIGSEGV by NULL when a data file was larger than ISO level allows.
+* Bug fix: Interpretation of 17 digit timestamps was wrong.
 * New API calls iso_generate_gpt_guid() and +iso_write_opts_set_gpt_guid().
 
 
diff --git a/libisofs/util.c b/libisofs/util.c
index 1034099..4ef9de6 100644
--- a/libisofs/util.c
+++ b/libisofs/util.c
@@ -1823,7 +1823,7 @@ time_t iso_datetime_read_17(const uint8_t *buf)
     tm.tm_mon -= 1;
     tm.tm_isdst = 0;
 
-    return timegm(&tm) - ((int8_t)buf[6]) * 60 * 15;
+    return timegm(&tm) - ((int8_t)buf[16]) * 60 * 15;
 }
 
 /**